import org.apache.commons.lang3.StringUtils;
import org.junit.Test;

import java.util.ArrayList;
import java.util.stream.Stream;

public class Demo01 {

    @Test
    public void createStream(){

        ArrayList<String> list = new ArrayList<>();
        list.add("1");
        list.add("2");
        list.add("3");
        list.add("4");
        list.add("5");
        list.add("6");
        Stream<String> stream = list.stream();



    }

}
